CN111671428B

CN111671428B - Prevent leaking lung function check out test set

Info

Publication number: CN111671428B
Application number: CN202010699661.3A
Authority: CN
Inventors: 王芳洁; 孙丽; 刘政委
Original assignee: First Affiliated Hospital of Army Medical University
Current assignee: First Affiliated Hospital of Army Medical University
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2023-03-14
Anticipated expiration: 2040-07-20
Also published as: CN111671428A

Abstract

The invention relates to the field of medical auxiliary instruments, in particular to leakage-proof lung function detection equipment. The inflatable device comprises an inflatable unit and a sealing unit, wherein the inflatable unit comprises an inflatable piece and an inflatable tube; the inflatable tube is provided with an accommodating groove, and the sealing unit is positioned in the accommodating groove; the sealing unit comprises a rotating blade, a rotating shaft and an elastic sheet, the elastic sheet is made of elastic materials and is annular, the elastic sheet is fixed with the side wall of the accommodating groove, a dust removing cavity is formed between every two adjacent elastic sheets, and a control cavity is formed between the elastic sheet and the side wall of the accommodating groove; the blade and the rotating shaft are both positioned in the control cavity, a pressing block is fixed on the rotating shaft, and one side of the elastic sheet, which faces to the other elastic sheet, is provided with a viscous layer. The lung function detecting apparatus of the present invention can prevent gas leakage when inflated.

Description

Prevent leaking lung function check out test set

Technical Field

The invention relates to the field of medical auxiliary instruments, in particular to leakage-proof lung function detection equipment.

Background

When the lung is diseased, the lung function of the patient changes, and the lung function detection device is a medical device for detecting the functional operation condition of the lung. The patent with the application number of CN201621041255.3 discloses a lung function detector, which comprises a flow dividing head, a breathing tube, a pressure difference sensor, a circuit board and a communication interface, wherein the flow dividing head is assembled in the breathing tube to divide the breathing tube into a breathing flow passage and a pressure taking flow passage; the breathing tube is provided with an air inlet at the front end, an air outlet at the rear end and a flow guide column in the middle, the caliber of the air inlet is larger than that of the air outlet, and a breathing channel is communicated with the air inlet and the air outlet; the pressure taking flow channel is communicated with the air inlet and the flow guide column, the differential pressure sensor is connected with the flow guide column, and the circuit board is connected between the differential pressure sensor and the communication interface so as to convert a pressure signal detected by the differential pressure sensor into a data signal and transmit the data signal through the communication interface.

When the existing lung function detecting equipment is used, components such as a pressure difference sensor and the like arranged in the lung function detecting equipment are required to detect the amount, the flow rate and the like of gas blown in from a gas inlet of a breathing tube by a patient, and the damage of the components in the equipment cannot be detected, so that a doctor cannot obtain an accurate and comprehensive detection result, and the doctor is easy to diagnose and treat to cause obstacles.

Whether work for the components and parts in the judgement equipment, medical staff all need detect components and parts every day, in order to avoid the repetition to carry out the dismouting to equipment, adopt the inflates from the air inlet to breathing a section of thick bamboo at present usually, the simulation patient detects, judges through the data that detect and obtain: if the number of a certain index in the detection result is always in a stop state, the component for detecting the index is damaged.

But in the in-service use, in order to make things convenient for the patient to blow in the air inlet with gas and avoid the direct and equipment contact of patient's oral cavity, still install disposable blow gun on the air inlet of breathing a section of thick bamboo, when blowing in to breathing a section of thick bamboo with the inflater, need pull down again after the blow gun and align inflater with the air inlet, because the inflater is not directly connected with the air inlet, reveal between inflater and the air inlet easily, and can't all get into in the inflater, lead to unable measuring.

Disclosure of Invention

The present invention is intended to provide a lung function detecting apparatus that prevents gas leakage when inflated.

In order to achieve the purpose, the invention adopts the following technical scheme: the anti-leakage lung function detection device comprises an inflation unit and a sealing unit, wherein the inflation unit comprises an inflation piece and an inflation tube, one end of the inflation tube is detachably connected with the breathing tube, and the inflation tube is communicated with an air inlet on the breathing tube; one end of the inflation tube close to the breathing tube is attached to the side wall of the breathing tube, an annular accommodating groove with an opening facing the side wall of the breathing tube is formed in one end of the inflation tube close to the breathing tube, and the sealing unit is located in the accommodating groove; the sealing unit comprises a rotating blade, a rotating shaft and a plurality of elastic pieces, the elastic pieces are made of elastic materials and are annular, the elastic pieces are different in diameter and are sequentially arranged along the radial direction of the breathing tube, the elastic pieces are fixed with the side wall of the accommodating tank, a dust removing cavity is formed between every two adjacent elastic pieces, a control cavity is formed between each elastic piece and the side wall of the accommodating tank, and the dust removing cavity and the control cavity are both communicated with the inflating piece and the inflating tube; the blade and the pivot all are located the control intracavity and the pivot rotates with the gas tube to be connected, are fixed with in the pivot to the briquetting of being close to a section of thick bamboo one side extrusion of breathing with the flexure strip, and the flexure strip is equipped with the viscous layer towards one side of another flexure strip.

The beneficial effect of this scheme does:

1. in the gaseous access control chamber of following of connection channel and the dust removal chamber in this scheme, gaseous entering makes the flexure strip take place to being close to breathing a section of thick bamboo lateral wall one side and warp after the dust removal chamber to make the flexure strip press down on breathing a section of thick bamboo lateral wall, seal the gap between breathing a section of thick bamboo lateral wall and the gas tube, avoid gas leakage, guarantee to detect and can normally go on.

2. After the gas enters the dust removing cavity, dust mixed in the gas can be adhered to the adhesive layer on the surface of the elastic sheet to remove dust of the gas; in addition, gaseous still making blade and pivot rotation through the interface channel for the briquetting uses the pivot to rotate as the center, and the briquetting extrudees the flexure strip to being close to a section of thick bamboo one side of breathing, makes two adjacent flexure strips reduce by the space of extrusion department, stirs the gas of dust removal intracavity, makes gas and viscous layer contact, further makes the dust in the gas adhered by the viscous layer, improves dust removal effect.

When a patient is detected, the patient needs to inhale gas after exhaling the gas and blowing the gas into the breathing tube, and the flowing direction of the gas flows to the patient from the breathing tube, so that the dust is also inhaled by the patient under the condition that the dust is adhered to the breathing tube, and pathogenic bacteria in the dust easily cause adverse effects on the health of the patient. Can avoid the dust to enter a breathing section of thick bamboo after driving the dust in the gas in this scheme, be favorable to protecting patient's healthy.

Furthermore, the bottom of the pressing block is hinged with a ball body through a ball.

The beneficial effect of this scheme does: when the pressing block moves along the elastic sheet, the ball body rolls relative to the elastic sheet, the surface of the ball body is smooth, and the elastic sheet can be prevented from being damaged.

Further, the adjacent side walls of the pressing blocks are in smooth transition.

The beneficial effect of this scheme does: the side wall of the pressing block is smooth, so that the side edges can be prevented from damaging the elastic sheet.

Further, a flexible layer is fixed on the surface of the pressing block.

The beneficial effect of this scheme does: the flexible layer further prevents the elastic sheet from contacting the hard pressing block, and prevents the elastic sheet from being damaged.

Further, the holding tank lateral wall is equipped with a plurality ofly with the different dust removal chamber and with the connected passage of dust removal chamber and control chamber intercommunication.

The beneficial effect of this scheme does: after the connecting channel communicates different dust removing cavities, gas can enter one dust removing cavity and then enter the other dust removing cavity along the connecting channel, so that the time for contacting the gas with the viscous layer is prolonged, and the dust removing efficiency is improved.

Further, the distance between two adjacent elastic sheets is less than or equal to 0.5cm.

The beneficial effect of this scheme does: the distance between two adjacent elastic pieces is smaller, so that the gas can be contacted with the viscous layer, and the gas removing effect is improved.

Furthermore, the side wall of the control cavity is provided with a plurality of air inlet channels communicated with the inflation tube along the circumferential direction of the breathing tube.

The beneficial effect of this scheme does: the control cavity is annular, and a plurality of air inlet channels facilitate the outflow of gas at each position of the control cavity.

Furthermore, one end of the inflation tube close to the breathing tube is provided with a positioning groove with an opening facing the breathing tube, the positioning groove is communicated with the connecting channel, a positioning block is arranged in the positioning groove in a sliding and sealing mode and is provided with a spring, and two ends of the spring are respectively fixed on the positioning block and the side wall of the positioning groove; the side wall of the breathing cylinder is provided with a clamping groove which is aligned with the positioning block and can contain the positioning block.

The beneficial effect of this scheme does: the gas in the connecting channel can enter the positioning groove at the same time, so that one end of the positioning block, which is close to the breathing tube, slides into the clamping groove, and the inflation tube cannot axially move relative to the breathing tube, thereby further avoiding the detachment of the inflation tube and the breathing tube.

Furthermore, the constant head tank is evenly distributed along the circumference of breathing section of thick bamboo.

The beneficial effect of this scheme does: the locating piece in this scheme distributes along circumference, and is better to the anti-drop effect of gas tube.

Furthermore, the air inlet end of the inflating piece is communicated with a measuring tube with the same inner diameter as the inner diameter of the breathing cylinder, and a differential pressure sensor is fixed in the measuring tube.

The beneficial effect of this scheme does: when gas flows through the gas charging pipe, the pressure difference sensor can measure the pressure difference between the inside and the outside of the measuring pipe, the data such as gas flow velocity, flow and the like can be automatically calculated through a computer, at the moment, the data is compared with the data detected by the lung function detection equipment, and when the difference between the data and the data is overlarge, the fact that components in the lung function detection equipment are damaged or break down can be judged.

Drawings

FIG. 1 is a front sectional view of example 1 of the present invention;

fig. 2 is a front view of embodiment 1 of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the breathing tube 1, the clamping groove 11, the inflation tube 2, the inflation channel 21, the baffle 22, the air inlet channel 23, the limiting block 24, the connecting channel 25, the rotating shaft 3, the pressing block 31, the rotating blade 32, the accommodating groove 4, the elastic sheet 41, the control cavity 42, the dust removing cavity 43, the first dust removing cavity 431, the second dust removing cavity 432, the third dust removing cavity 433, the positioning groove 5, the positioning block 51, the spring 52, the air pump 6 and the detection tube 61.

Example 1

Prevent leaking lung function check out test set, as shown in figure 1, including inflating unit and sealed unit, it includes inflatable spare and gas tube 2 to inflate the unit, gas tube 2 includes the section of aerifing on left erection section and right side, the inner wall of erection section pastes with the outer wall of breathing a section of thick bamboo 1 mutually, and erection section inner wall and the outer wall threaded connection of breathing a section of thick bamboo 1, the internal diameter of inflating the section is the same with breathing a section of thick bamboo 1 internal diameter, it communicates with the air inlet on a section of thick bamboo 1 to inflate the section of thick bamboo left end, the valve is installed to the right-hand member of inflating the section.

The right end of the inflation section is connected with the air outlet end of the inflation piece, specifically, the inflation piece in the embodiment adopts an air pump 6, the middle of the inflation section is connected with a baffle 22 in an adhesive mode, and the baffle 22 seals the inflation section. The mounting section inner wall is equipped with the annular holding tank 4 of opening orientation breathing section of thick bamboo 1 lateral wall, and sealed unit is located holding tank 4. The sealing unit includes a plurality of rotating members and four elastic pieces 41, in this embodiment, the elastic pieces 41 are made of elastic rubber, and the elastic pieces 41 are annular. The elastic pieces 41 are sequentially distributed along the radial direction of the breathing tube 1, the elastic pieces 41 are glued with the left side wall and the right side wall of the accommodating groove 4 and are fixed in the accommodating groove 4, and the distance between every two adjacent elastic pieces 41 is 0.5cm. An annular dust removing cavity 43 is formed between the adjacent elastic sheets 41, and an adhesive layer is arranged on one side of the elastic sheet 41 facing the other elastic sheet 41, specifically, the adhesive layer in the embodiment is formed by coating adhesive on the elastic sheet 41. A control cavity 42 is formed between the elastic sheet 41 farthest away from the breathing tube 1 and the side wall of the holding tank 4, four air inlet channels 23 are circumferentially distributed in the side walls of the mounting section and the inflating section, the left ends of the air inlet channels 23 are communicated with the control cavity 42, and the right ends of the air inlet channels are communicated with the space on the right side of the inflating section on the baffle 22. The left wall of the holding tank 4 is provided with two U-shaped connecting channels 25, the right wall of the holding tank 4 is provided with one U-shaped channel, and the first dust removing cavity 431 is respectively communicated with the second dust removing cavity 432 and the third dust removing cavity 433 from top to bottom through the two connecting channels 25 on the left side; the connecting channel 25 of the right wall of the accommodating groove 4 communicates the control chamber 42 with the first dust removing chamber 431 from top to bottom. The right wall of the accommodating cavity is provided with an L-shaped inflation channel 21, the inflation channel 21 comprises two transverse channels, the left ends of the transverse channels are respectively communicated with the second dust removal cavity 432 and the third dust removal cavity 433 from top to bottom, and the lower ends of the vertical channels of the inflation channel 21 are communicated with a cavity of the inflation section on the left side of the baffle 22.

The rotating assembly comprises a rotating shaft 3 and rotating blades 32, the rotating assembly located on the upper side of the breathing tube 1 is used as an example in the embodiment, the rotating shaft 3 is vertically arranged, the upper end of the rotating shaft 3 is T-shaped, the side wall of the air inlet channel 23 is welded with a limiting block 24 in an L shape, the rotating shaft 3 is limited, and the rotating shaft 3 is prevented from falling downwards. The rotor blade 32 is fixed to the rotary shaft 3 by a flat key, and the rotor blade 32 is located at the end of the air intake passage 23, and the rotor blade 32 in this embodiment is an axial flow blade. The lower extreme welding of 3 lower extremes of pivot has the briquetting 31 of L shape, and is specific, and the vertical section of briquetting 31 is cylindrical in this embodiment, and smooth transition between the bottom of briquetting 31 and the lateral wall, and the lateral wall glue of vertical section is connected with the flexible layer of rubber material, and the lower extreme ball joint of vertical section has the spheroid.

Holding tank 4 left side is equipped with the constant head tank 5 of three upper end and inlet channel 23 intercommunication, and three constant head tank 5 is equipped with spring 52 and sliding seal have locating piece 51 along breathing a section of thick bamboo 1's circumference evenly distributed in the constant head tank 5, and the welding is on locating piece 51 and constant head tank 5 roof respectively at spring 52 both ends. The outer wall of the breathing tube 1 is provided with a clamping groove 11 aligned with the positioning block 51, and the positioning block 51 in the embodiment can slide into the clamping groove 11 after sliding out.

The specific implementation process is as follows:

initially, the positioning block 51 is located in the positioning groove 5, the four elastic pieces 41 are not deformed to the side close to the breathing tube 1, and the valve is in a closed state, so that gas in the inflation tube 2 is prevented from leaking from the valve. When the breathing tube is used, the mounting section is manually connected with the right end of the breathing tube 1 through threads, and the clamping groove 11 is aligned with the positioning block 51. Then the air pump 6 is started, when the air pump 6 works, air is introduced to the right end of the inflation section, the air enters the control cavity 42 along the air inlet channel 23, the rotating blade 32 and the rotating shaft 3 are enabled to rotate, the air in the control cavity 42 firstly enters the first dust removing cavity 431 from top to bottom from the connecting channel 25 on the right side of the containing groove 4, then enters the second dust removing cavity 432 and the third dust removing cavity 433 from top to bottom from the connecting channel 25 on the left side of the containing groove 4 respectively, then enters the inflation tube 2 from the inflation channel 21, and enters the breathing tube 1 from the air inlet of the breathing tube 1, and at the moment, whether components in the equipment are damaged or not can be judged by judging whether the anti-leakage lung function detection equipment has complete reading or not.

And after the gas enters the third dust removal cavity 433, the pressure in the dust removal cavity 43 is increased, so that the elastic piece 41 deforms towards the side close to the breathing tube 1, and a gap between the breathing tube 1 and the mounting section is sealed to prevent gas leakage. And when gas when the viscous layer, dust in the gas is by the adhesion on the viscous layer, when pivot 3 rotated, the vertical section of briquetting 31 pressed the different positions of flexure strip 41 downwards in proper order for the distance between two adjacent flexure strips 41 reduces, impels the gas in the dust removal chamber 43 to contact with the viscous layer, thereby makes the dust in the gas more easily by the adhesion on the viscous layer, improves dust removal effect.

After the use, the air pump 6 is closed, the valve is opened, residual air in the inflation tube 2 and the air inlet channel 23 is discharged from the valve, the elastic sheet 41 is reset, the positioning block 51 is reset under the action of the spring 52, the inflation tube 2 can be screwed out rightwards at the moment, and the detachment of the inflation tube 2 is completed.

Example 2

On the basis of embodiment 1, as shown in fig. 2, the air inlet end of the air pump 6 in this embodiment is connected with a measuring tube, the inner diameter of the measuring tube is the same as the inner diameter of the breathing tube 1, and a differential pressure sensor is glued in the detecting tube 61, and the installation and use of the differential pressure sensor in this embodiment are the same as those in the lung function detecting device, and will not be described again here.

When the air pump 6 in this embodiment works, air is sent to the air inlet channel 23 through the air pump 6 via the detection tube 61, and the pressure difference sensor can detect the pressure difference between the interior of the detection tube 61 and the outside, so that data such as air flow velocity and flow can be calculated by a computer, the data is compared with data detected by the lung function detection equipment, and when the difference between the data and the data is too large, it can be judged that components in the lung function detection equipment are damaged or have faults.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. Prevent leaking lung function check out test set, its characterized in that: the breathing tube comprises an inflation unit and a sealing unit, wherein the inflation unit comprises an inflation piece and an inflation tube, one end of the inflation tube is detachably connected with the breathing tube, and the inflation tube is communicated with an air inlet on the breathing tube; one end of the inflation tube close to the breathing tube is attached to the side wall of the breathing tube, an annular accommodating groove with an opening facing the side wall of the breathing tube is formed in one end of the inflation tube close to the breathing tube, and the sealing unit is located in the accommodating groove; the sealing unit comprises a rotating blade, a rotating shaft and a plurality of elastic pieces, the elastic pieces are made of elastic materials and are annular, the elastic pieces are different in diameter and are sequentially arranged along the radial direction of the breathing tube, the elastic pieces are fixed with the side wall of the accommodating tank, a dust removal cavity is formed between every two adjacent elastic pieces, a control cavity is formed between the elastic piece farthest away from the breathing tube and the side wall of the accommodating tank, and the dust removal cavity and the control cavity are both communicated with the inflating part and the inflating pipe; the blades and the rotating shaft are both positioned in the control cavity, the rotating shaft is rotationally connected with the inflation tube, a pressing block which extrudes the elastic sheet to one side close to the breathing tube is fixed on the rotating shaft, and one side of the elastic sheet facing the other elastic sheet is provided with a viscous layer;

the side wall of the gas charging pipe is provided with a plurality of gas inlet channels communicated with the gas charging pipe along the circumferential direction of the breathing tube, the side wall of the accommodating tank is provided with a plurality of connecting channels for communicating different dust removing cavities and the dust removing cavities with the control cavity, the gas charging pipe comprises a left mounting section and a right gas charging section, the middle part of the gas charging section is glued with a baffle plate, the baffle plate seals the gas charging section, the left end of the gas channel is communicated with the control cavity, and the right end of the gas channel is communicated with a space of the gas charging section, which is positioned on the right side of the baffle plate; the right wall of the accommodating cavity is provided with an L-shaped inflation channel, the inflation channel comprises two transverse channels, the left ends of the transverse channels are respectively communicated with the second dust removal cavity and the third dust removal cavity from top to bottom, and the lower end of the vertical channel of the inflation channel is communicated with a cavity of the inflation section on the left side of the baffle.

2. A leak-proof lung function detection apparatus according to claim 1, wherein: the bottom of the pressing block is hinged with a ball body in a ball joint mode.

3. A leak-proof lung function detection apparatus according to claim 2, wherein: and the adjacent side walls of the pressing blocks are in smooth transition.

4. A leak-proof lung function detection apparatus according to claim 3, wherein: and a flexible layer is fixed on the surface of the pressing block.

5. A leak-proof lung function detection apparatus according to claim 1, wherein: the distance between two adjacent elastic pieces is less than or equal to 0.5cm.

6. A leak-proof lung function detection apparatus according to claim 1, wherein: one end of the inflation tube close to the breathing tube is provided with a positioning groove with an opening facing the breathing tube, the positioning groove is communicated with the connecting channel, a positioning block is arranged in the positioning groove in a sliding and sealing mode, a spring is arranged in the positioning groove, and two ends of the spring are respectively fixed on the positioning block and the side wall of the positioning groove; the side wall of the breathing cylinder is provided with a clamping groove which is aligned with the positioning block and can contain the positioning block.

7. A leak-resistant lung function detection apparatus as recited in claim 6, wherein: the positioning grooves are uniformly distributed along the circumferential direction of the breathing tube.

8. A leak-proof lung function detection apparatus according to claim 1, wherein: the air inlet end of the inflating piece is communicated with a measuring pipe with the inner diameter being the same as that of the breathing cylinder, and a differential pressure sensor is fixed in the measuring pipe.